Filter



Nov. 23, 1943. 1. ZUCKERMANN`A n v 2,334,802

FILTER Filed sept. 29,1941

Zsz'dar@ Zaef/Wawf I N VEN TOR.

ATI'D R N EYE Patented Nov. 23, 1943 t Isidore Zgelgermann, New Yoglfko), Nj: .Aieinaiotseiiinber 29, nein surfistas. anni mais iaijaasrifisiaigs sinners it agit/gies tabaattaghed:

miniemen. Ambient ofi the 'aventi haring ansiosi@ suine andi housing remaining? Connected to. the ton @fi the @asias bsf ai mais@ Screw thread: ta tenait' gasa-senaratisnifoi tha easing; Vto

ont 'naseessstothgnltegQunatheiseparahlofea? of the housing andi gasing @emitting the lati@- tQ.- bade-taglia@ when. ltgiiiida water not rigggssarif; ais'for. example, when washing dishgiiv Vegetables amiguita, f

A further' obieetis te, Y y charastgr having aresilientzgasket ytlireagadiraus gaged with the neck of the housing and provided with: a. `sliiazpel` resilient funnel disposed .tot-ide a alter et i this .nis una .nagelaten titer. Quai i naredslsirt. i Si having a rlinn-i coaxial with the gasket adapted to receive'faucets,` ,1

of various sizes and shapes. f

A further object is to provide adevice of this character having nested filter cups, preferably four in number, removably assembled in the casing and respectively. from top to bottom containing cotton, finely ground charcoal, ground coke and coarsely ground charcoal, this `arrangement of lteringmaterial of this character in the order named promoting unrestricted velocity of the within the scope of the appended claim without departing from the spirit or sacrificing anyr of the advantages of the invention.

In the accompanying drawing forming apart of this specification:

" engages with theshoulder l1 to limit turning italiante-rsA ci? reterence; designate. similiarl parts Ain thevarians .vi'ewsi4 Irdesignatsa conventional Y tallest havingzaisnout .I t., In galiryinaout the fintion a fitter.- is erovidedicornpriisine; a cillin: .1. I.

- oaf-f Asis WriiinfFigurez nasi. s;

surtagewith: a keur. er1-stepped boss 'I4 and above the boss is provided withwa saarsethrsad providedfwitha-.tapered endi la and terni etes asumidas 111:,

A cylindrical housingf.

Atmen-@dra ts onine innerfstiacof tha' ein Y (imacat.g1g-` dispfised -tats 2t ornent im Y l Wardlysee Figures 2 and 4. The tabs are adapted Y to be received by the coarse screw thread l5 when the casing I2 is turned axially to cause the tabs toY mesh With the thread and detachably assemble the casing with the'housing. One of the tabs movement of the housing on the casing when assembling the parts.

- The housing |s` is provided with an integral perforated diaphragm 22 and `above the diaphragrn the housing is provided with an internal screw thread 23.' Y

A cylindrical rubber gasket 24 is provided with an external screwthread 25 adapted to l engage the screw thread 23 of the housingl8.

The gasket is provided with a frustrum shaped integral funnel 26 coaxial with the gasketand plied to a faucet to t various shapes of faucets, such as faucets having cylindrical, or elon- Figure 1 is a side elevation of a filter constructs ed in accordance with the invention attached to a faucet. Y

Figure 2 is a longitudinal rsectional.vievvtaken` on the line 2-2 of Figure 1.

Figure 3 is a side elevation of the casing de` shown in Figure 5. The cups are formed of tached from the housing showing the coarse screw l thread.

Figure 4 is a bottom plan view of the housing showing the tabs for engaging the thread of the casing. i

Figure 5 is a perspective view ofone of the filterI Cups. Y

Referring now to the drawing `in which like tapered from its wide end at the top of thel gasket to its small end near the bottom of the gasket, see Figure 2. The rubber funnel 26 may easily be deformed when the gasket is apgated flat spouts,.or to t spouts of different diameters. A rubber washer '9 is interposed 'between the gasket 24 and the perforateddiaphragm 22.

Removably disposed within the casing is a.V

nested `stack of filter cups 21 one of which is any desired material and are perforated inthe bottom Walls. rEachv cup `is provided on the inner surface at the top with a shoulder 28` and is provided on the outer surface atthe bottom with a shoulder 29. When thercups aregstacked inthe casing the shoulders of the cups' interfit, see Figure 2.V The uppermost cup-isjpreferably filled with a lter element 30 formed of cotton batting. The filter elements of the cupsV un-VV f 01E-FICE i derneath the uppermost cup is provided with filter elements Varranged in the Yfollowing order:

w from top to bottom respectively,` nely ground charcoal 3l,V ground coke A32, and `coarsely ground charcoal 33. The nely ground charcoal first encounters the stream of water when the velocityis greatestgand is intended to more appreciably slow up the velocity of the'stream. The next underneath n lter element being Vformed -of ground coller-has vlarger `interstices between the particles substantially *maintains the same Velocity of the water as exists when the Water leaves the nely ground charcoal.j liv;` The lowermost lter element of coarsely ground l5' charcoal has a still large interstice between the particles maintains the same `velocity .offthe Y water'` when leaving the ground cokefilter.

vTo assure the gasket 24 being clampedywater as a unit therein when ltered water is not desired, as for example, when washing the hands Also the cotton lter element may be easily accessiblewhen the cas-V t ing is removed from the housing'to permit a ties will be removed while at the same time f tight tc the spout Il of the faucet a iiange 34 is formed on the outer surface cf thegasket and' is adapted to be supported on the upper edge' of, thehousingL I8, see Figure2. A clamp ',wire'- 35- is wrapped; in'la: single convolution around-the outerv surface'of "the housing above the ange 34- and the ends are'twisted together-Vas shownr atJSS in vFigure V'1.2 At diametrically' opposite peints', lugs 3T are formed .integral with vthe housing 'and the clamp wire'pa'sses through these" lug/s to be Vpermanently assembled with the cgasket.y ff' `VAYAAA rubber washer 8'A is disposed between" the housingand fthe casing toprevent water from leaking or spouting o ut.

' In operation the threaded- Vjoint between? the casingl` andthe housing permits the casing'b'edetached ',withrthe nested filterfcups Ycarried or washing the dishes.

fresh supply of cotton being applied in the uppermost filter cup. When the/stream of water j passes through the various lter cups impuribenecial characteristics vofthe water, such as suspended salts and other beneficial ingredients will be in no wise interfered with.

Y, From the above description it is thought that j I the construction and operation of the invention will be fully understood without further exv f plantations.. f Y

what is claimed is:

YIn'a'iilt'er device; a tubular casing having a discharge opening in its lower end, VAthe said casing being adapted to accommodate al plujralityfof stacked filter sections therein, a cover# section 'mounted 'on the casing "having aj cylln;v Y' dricalrinteriorly threadedfbodygof a''diameter smaller'than the diameter 'of 'the casing, a nar# ing skirt depending from" thef body' andV having a'cylindricallflang'e at the'bottbmencircling the upper pcrtionofv the -`casing, a lscrew' connection for joiningthe saidcoverfilang'e with the casing,

a perforated transverse partition at the bottoni;

ofL the'cov'erv body, a jre'silient'tubular'gasket iitted'intc` V the cover-body'and havinggscrew, thread connection therewith; and a wire Y. en# `circling'the upper projectingr Q'portionA 'df lthe Y gasket for-tightly tting the same on Va vfaucet. 

